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Finding the Fourth Proportional to 159,503.32, 220,115.01 and 87,883.12

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Solution

The fourth proportional to 159,503.32, 220,115.01 and 87,883.12 is: 121,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,503.32 : 220,115.01 = 87,883.12 : x
  2. Step 2: Convert to fraction form
    159,503.32/220,115.01 = 87,883.12/x
  3. Step 3: Cross multiply
    159,503.32x = 220,115.01 × 87,883.12
  4. Step 4: Simplify right side
    159,503.32x = 19,344,393,837.63
  5. Step 5: Solve for x
    x = 19,344,393,837.63/159,503.32
  6. Step 6: Final answer
    x = 121,278.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.